Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 16-08-2019 and time 18:25:54 (Italy) in region 3 km NE Longano (IS)

A magnitude ML 0.9 earthquake occured in region: 3 km NE Longano (IS), on

  • 16-08-2019 16:25:54 (UTC)
  • 16-08-2019 18:25:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5420, 14.2640 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Longano IS 3 690 690
Castelpizzuto IS 3 155 845
Sant'Agapito IS 4 1496 2341
Pettoranello del Molise IS 4 460 2801
Isernia IS 6 21842 24643
Castelpetroso IS 7 1680 26323
Monteroduni IS 8 2264 28587
Carpinone IS 8 1157 29744
Pesche IS 8 1661 31405
Macchia d'Isernia IS 8 1035 32440
Roccamandolfi IS 9 938 33378
Gallo Matese CE 9 579 33957
Santa Maria del Molise IS 9 665 34622
Letino CE 10 712 35334
Cantalupo nel Sannio IS 11 739 36073
Fontegreca CE 12 811 36884
Miranda IS 12 1047 37931
Macchiagodena IS 12 1854 39785
Sessano del Molise IS 12 727 40512
Montaquila IS 13 2456 42968
Fornelli IS 13 1909 44877
Capriati a Volturno CE 13 1541 46418
Prata Sannita CE 13 1502 47920
Valle Agricola CE 13 890 48810
San Massimo CB 13 855 49665
Ciorlano CE 13 426 50091
Colli a Volturno IS 15 1349 51440
Pescolanciano IS 17 855 52295
Pratella CE 17 1565 53860
Frosolone IS 17 3170 57030
Pozzilli IS 17 2380 59410
Filignano IS 17 648 60058
Rocchetta a Volturno IS 17 1113 61171
Ailano CE 17 1369 62540
Acquaviva d'Isernia IS 17 425 62965
Roccasicura IS 18 550 63515
Sant'Elena Sannita IS 18 275 63790
Cerro al Volturno IS 18 1281 65071
Civitanova del Sannio IS 18 945 66016
Chiauci IS 18 233 66249
Forlì del Sannio IS 19 675 66924
Bojano CB 19 8058 74982
Spinete CB 19 1320 76302
Scapoli IS 19 680 76982
Raviscanina CE 19 1319 78301
Venafro IS 19 11280 89581
Carovilli IS 19 1359 90940
San Gregorio Matese CE 20 988 91928
Sant'Angelo d'Alife CE 20 2270 94198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km N of Caserta (76326 inhabitants)
63 Km NW of Benevento (60091 inhabitants)
63 Km N of Aversa (53047 inhabitants)
67 Km N of Acerra (59573 inhabitants)
68 Km N of Giugliano in Campania (122974 inhabitants)
69 Km N of Afragola (65057 inhabitants)
71 Km N of Casoria (77642 inhabitants)
72 Km N of Marano di Napoli (59874 inhabitants)
78 Km N of Napoli (974074 inhabitants)
79 Km N of Pozzuoli (81661 inhabitants)
80 Km N of Portici (55274 inhabitants)
82 Km N of Ercolano (53709 inhabitants)
83 Km NW of Avellino (54857 inhabitants)
84 Km N of Torre del Greco (86275 inhabitants)
90 Km S of Chieti (51815 inhabitants)
91 Km N of Scafati (50787 inhabitants)
94 Km W of San Severo (53905 inhabitants)
96 Km N of Castellammare di Stabia (66466 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 0.9 2019-08-16
16:25:54		 41.5417 14.264 8 2019-11-13
14:30:58		 Bollettino Sismico Italiano INGV 71654991
Reviewed
Rev100 		ML 0.8 2019-08-16
16:25:54		 41.5387 14.2758 3 2019-08-16
16:32:50		 Sala Sismica INGV-Roma 71551881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-16 16:25:54 ± 0.13
Latitude 41.5417 ± 0.0045
Longitude 14.2640 ± 0.0060
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71654991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 558
Semi-minor axis of confidence ellipse (meter) 177
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 13
Type of magnitude ML
Reference to an origin 71654991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-20 14:39:00

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 13
Type of magnitude ML
Reference to an origin 71551881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-16 16:32:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACR.HNN. 2019-08-16T16:26:08.17 1.0 undecidable manual S 113 40.0266 50 -0.13 24
IV.PTRJ.HHE. 2019-08-16T16:26:05.13 0.3 undecidable manual S 132 29.5482 105 0.06 73
IV.BSSO.HNZ. 2019-08-16T16:26:04.08 0.3 undecidable manual S 89 27.3504 106 -0.26 71
IV.CERA.HHZ. 2019-08-16T16:26:02.73 0.6 undecidable manual S 287 21.3675 110 0.39 46
IV.SACR.HNN. 2019-08-16T16:26:02.53 1.0 undecidable manual P 113 40.0266 50 0.09 24
IV.RNI2.HHZ. 2019-08-16T16:26:01.57 0.3 undecidable manual S 333 20.1687 111 -0.4 69
IV.BSSO.HNZ. 2019-08-16T16:26:00.41 0.1 undecidable manual P 89 27.3504 106 0.25 94
IV.PTRJ.HHE. 2019-08-16T16:26:00.46 0.3 undecidable manual P 132 29.5482 105 -0.12 72
IV.MIDA.HHZ. 2019-08-16T16:25:59.39 0.3 undecidable manual S 356 11.1777 125 0.2 74
IV.VAGA.HHZ. 2019-08-16T16:25:59.74 0.3 undecidable manual S 190 14.1747 119 -0.36 71
IV.CERA.HHZ. 2019-08-16T16:25:58.83 0.1 undecidable manual P 287 21.3675 110 -0.18 97
IV.VAGA.HHZ. 2019-08-16T16:25:58.04 0.1 undecidable manual P 190 14.1747 119 0.33 95
IV.RNI2.HHZ. 2019-08-16T16:25:58.73 0.1 undecidable manual P 333 20.1687 111 -0.06 99
IV.MIDA.HHZ. 2019-08-16T16:25:57.29 0.1 undecidable manual P 356 11.1777 125 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:0.9 0.00011739676 0.1792 AML other m 2019-08-16T16:26:00.11
IV.MIDA.HNE. ML:0.9 0.00010224031 0.1664 AML other m 2019-08-16T16:26:01.60
IV.MIDA.HHN. ML:0.9 0.00010810351 0.1664 AML other m 2019-08-16T16:26:01.60
IV.VAGA.HHE. ML:1.0 0.00011605759500000001 1.8208 AML other m 2019-08-16T16:26:01.00
IV.RNI2.HHE. ML:0.9 0.00006214999999999999 0.64 AML other m 2019-08-16T16:26:03.44
IV.RNI2.HNE. ML:0.8 0.000045072310000000006 0.192 AML other m 2019-08-16T16:26:03.71
IV.VAGA.HHN. ML:1.2 0.00016954985 0.3968 AML other m 2019-08-16T16:26:03.67
IV.CERA.HHN. ML:0.7 0.000040899485 0.2816 AML other m 2019-08-16T16:26:04.20
IV.CERA.HNE. ML:0.9 0.00005655332 0.6016 AML other m 2019-08-16T16:26:04.58
IV.CERA.HHE. ML:1.0 0.0000656 0.52 AML other m 2019-08-16T16:26:04.32
IV.CERA.HNN. ML:0.8 0.00004629302000000001 0.3584 AML other m 2019-08-16T16:26:04.95
IV.RNI2.HNN. ML:0.7 0.000040787950000000006 1.6928 AML other m 2019-08-16T16:26:04.89
IV.RNI2.HHN. ML:0.7 0.000035548984 1.7184 AML other m 2019-08-16T16:26:04.89
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download